Record-resurfacing machine



DecQIG; 1930. v. L. FRYKIQIAN 1,785,409

RECORD'RESURFACING MACHINE Filed July 23, 1927 2 SheetS- Sheet f1INVENTOR. VICTOR L. FRYKMAN ORNEYY Dec. 16,1930. v. L. FRYKMAN 1,785,409

RECORD RESURFACING MACHINE Filed July 25, 927 2 Sheets-Sheet 2 VENTOR.VICTOR RY KMAN 'Paiten ted Dec; 1 6; 19230 UNITED {mice vro'ron L.FRYKMAN, or TBRIDG'EPORT, CONNECTICUT, nssien'on "r Moran-town*ooRroR'ATIoN, OFQBRIDGEPORTQ CONNECTICUT, iooRronATroN onimw your:

nnoonii jensunrnorne M C INE,

AppHcation fiied J 'iil3y2a, 1927.1 serieim enze is. d

This invention relates to record-resurfac machines, and more partcularly to an in proved machine for shaving IfeCOrd"bi2L'I1l S,particularly those intended for use WithdlO j tation machines. e f I: 1f d An object of the present invention is to provide improved means to.facilitate the setting of arecord-engaging tool in proper'operatingposition forresurfacinga record.

Another object of the present invention is to provide means toautomatically advance:

the knife-bar carriage successive steps of pre-i deter ined extenttowarditherecord for sue- J ceive another recordtohe shaved.

set position, and ejecting a record from a reccessive finishing cuts.

means for restoring the automatie knifeadvancing means, releasing theknife from ord-supporting mandrel, so that asingle operation the maohlneis made ready'to re- In the accompanying drawingswhich illustrateoneform of the invention, that at present Preferred Figure 1 'is "a rightha d end, Qumra partly in section; of a recordresurfacing ma chine withthe parts shown in the operating knife-bar releasing means.

V a modified form ofv the inventionqf positions. t g o Fig. 2 isvasectional iewtaken throughthe line 22 of Fig.1, showing indetail; theautomatic step-by-step operating knire dmm ing' means of the presentinvention'.

Fig. 3 is a fragmentary topplan View of parts of a record-resurfacingmachine and shows the relation of the reCOrd-e eotOr to'the Fig.4 is aView'similar to Fig, 2, showing The. record-resurfacing. machine shown;

herein: is particularly adapted for shaving orotherwise resurfacingphonograph record standard 11 and a right-hand st andard '(n0t shown)between which is supported a car- 'riage rod '12 on which a carriage 13sguided for moyement longitudinally ofthe machine; A carriage 13 extendsforwardly and upcarriage.

';be1t .23 which engagesa 24' to'd'riVe-the mandrel;

w'ard ly from the carriage rod 12 to a; point whereitis'proVided-withajweightan d hanfd; p n piecegltwhich'is adapted'to be grasped by the,operator whenf manually, moving the Located in front of thecarriage-rod12 and: supported inthe-usual manner, is a'mandrel l5havinga mandrel shaft 16 adapted to supfport-a record 17, iMovement of theknife-bar -c'arriagef13 longitudinally of the record 17 for resurfacingthe latter, is] effected by means of a feed-screw l 8e'n'gagedfbyafeed-jnut 19" mountedvon the carriage 13; j Thef eed-screw his smountedbetween melee-h nd standard .is cau'sedto rotate; coordinately with thea mandrel shaft 16 by m'eans v,of-a jconnecting belt 20 engaging apulley 21 onthe feed-screw g shaft 18 and pulley 22 carriedby the .manidrelshaft 16.1 Themandrel shaft 16 is driven ll ta'nd the right-handstandard (not shown by a 'suitablefmotorgwot shown) 1 driving a "Theaboydescribed: structure and mecha- "xnism is common to record-resurfacingmachine's heretofore manufactured, and fused I "Phonograph"record-b1anks are customarily shaved" when it is desired to obliteratea I record preparatory toprodi loinga'new 'recv 0rd, onithe s'urface vofthe blank But, this "operation maybe accomplished bynieans ofburnjishing;melting and other arrangements 0 i I 'and'in so far as someof the salient features of thepre sent'invention are concerned, it isimmater al whether the record-engaging tooi is a 1mife,';burnisher,' orother device How- 7 ever, since the method of" cutting-isthe oneanere1suatpu11e most-frequently used and the most preferable V V atpresent, it is illustrated-herein. B v

The A device as 'illustrated} herein has, a"

hnife barl 25 adapted {to carryfat its enda V V gmife26,11su'a11y,,1nade of sapphireor other blanks, particularly thoseadapted to' be used hard stone A gage-barZZjsinterconnected with theknife-bar 25 by atie-b'ar 28 so that are slida'hl 'e in "the housing29'forn1 ing part of the carriage 1 3 for movement en "bloc.

position away from the record 17 bya spring 'a0' When arecord 17 iplaced 0 t mandrel" l5. audit is desired to take a first or prepare torycut, the/knife 26 maybe quickly set for this cut by the operatorpressingon a finger-' piece Slxonthe end ofthe gage-bar and,mov-- ing theknife-bar ensemble forwardly against; "the pressure ofthe spring 30until the gage bar 27 contacts with the surface of the reco'r'cl 17.Then the knife-bar is locked in the ,posii-jf tion so determined bydrawinga'yieldi'ng splits ectionl32 of the housing 29 togetherby ;Thethreads-of thejjs crew33"fare suchjthat when the leverg l is moved inthe directionof ego thearrow shown'in Fig. 1, the knife-bar is lockedagainst'movement. {The setting ofth'o {knife-bar is preferably efiected.while the same: 1

carriage is at the position where it finished shaving the previousrecord, in, which pcsi tion'the knife 26 is out ofrangeor beyond the;record-surface and the gage is 'locatedabove the record as shown Fig,'3to engage the.

When the'knife-barfl'l is so stein predetermined position with relationto the record 17 the operatorgra'sps the hand-piece l l'and swings thecarriage 13 upwardly, until a lug 85 on the carriage engages an:abutment 36 er' g p f t f, the base 1 fTh movem n prises a shoe 38 whichis vertically movable of the carriage upwardly moves the interconnectedknife-bar'25 andga'ge-bar 27 rearwardly away from the -reco rd l'l also7 moves gum reed-minis "outiof engagement with the; feed-screwl18, ashereinafter described. While so raised,.the carriage is slidlongitudinally of therecord 17 along the carriage rod 12 to theoppositeendoftherecord 17 where the carriage 13 is allowedto swing'downwardly to normal position. In this'position, the feed-nut 19fagainengages with the feed-screWflSg I Y i Y Thenthe motor or: other driverstarted,

the record is rotated by the mandrel andthe carriage 13'is movedlongitudinally over the record .17 on thecarriagerod l2 by rotation ofthe feed-screw 18 thus causingfthe knife -26 to engage the record 17 andremove a prei determined amount of material, including all or part ofthe recording thereon; In this r travel, the gage-bar 27 follows theknife 26 7 across the record and hen'ce, being always above'aiportionflof the record gustshaved, 1 3 any desired manner, However,since thepawl-and ratchetmechani'sm, as above H 1. stated, isoperated asan incident to the move-r] 13'cont1nuestobe fed longirecord. 5

The carriage v tudinally until the knife-bjar is'passed be- ;yond theend or the record-, i. e. to the posif ts tion shown in Fig. 3, where,as usual it stops because the feed-hutlQ runs ofi fthe'threaded portionof the feed-screw 18 onto an 1111- it threaded portion thereof.

order to take,inaddition to the first orpreparatory out, other light orfinishing .cuts of predetermined depth without necessitating ;theresetti-ng of the knife-bar 25,.the present invention;provides means forautomatically ad ustmgthe carriage 13 to advance the kn1fe bar m0unted"therein toward the rec- 0rd a predetermined extent incidental to ieachfoperationoqt moving the carriage 13 to -position to start shaving arecord; 1 r a screw 33 havingfsecuredtoit a' le ver.34.,

"Fo'r'this purpose, the present invention takes advantage of theiactthat the carriage itself-has-pivotal movement as wellas a slidbypivotal" movement of thecarriage, the usual shoe part of the carriagewhich rides on the front rail is' dispensed with 'and instead -thepresent invention provides mechanism vfor-lmvei'ing the carriage andconee quently effecting forward movement-oi the knife-bar towardtherecord whenit is desired to advance the knifeffor successive inishingcuts. 1

A. The ,jiecha'nisin iorsaccomplishing this, ac-

cording tothe oresent invention, in the form shown inythe accompanyingdrawings, commetrically opposit'e'vsid'es by fianges 42 and 43 on theshoe-38.: The disc 401s mounted Ito rotatevonthe studel whiclipassesthrough an-elongated slot, in the vshoe 38 permitting vertical movementof the shoe.

The off-set disc or cam 4:0 which controls the shoe 88 is held ininitial or starting positionwith the stop ear t eng'aging a stoppin 46"oirthe part, 13a by a spring 4:7 coiled with n arecess 111 the ofilsetdisc 40 and anchored-onthe stud 41. It is moved from this initial orstartingposition step-by-step preierably by a pawl and-ratchet mechanismsuch as aratchet-disc 4:8 .se cured to the off-set or cam disc lO.

The pawl- 4-9 0 V v fthis pawl and ratchet mechan s'm may beconveniently mounted on the carr age for movement relative to theratchet mentofzthe carriage 13 to position to start i shaving Trecord,which movement. includes riage to release the-IzEeed-nut from thefeedpreparatOly vertical-movement of the ,cari "no r y j 48 when therock-shaft='65 is rotated; Oppowhen'therock-shatt65isrotated."

adapted to be manually operated after a rec rd has been resurfaced." f

above," attention is' called to the fact'that the record-resurfacingmachine shown in the ac-.

companying drawings is provided, as is nsua'l in such machines, withmeans for facilitating the removal ofthe record fr omthe mandrel.

' Thismeans, as shownfinthfe accompanying o tate the rock shaft 65 andthereby move' 'the record. V I x V w J Inforder 'to'carry'out multiplefunctions of drawings, is in the form QOf a recor'd e'j'ector i having areco'rdgejector plungerT6O slidable longitudinally ofjthe machine in thestandard 61 and normally held in'inoperativei position by-a'spriiig 62,The plunger is'moved forwar ly Until-ahead Portion 63 engages therecordto loosenit from the fm'andrel by a, leverQ64 mounted on a rockersha ft 65 journaled in the frontrail 37 ands standard 66. At its-frontend, the rock shaft 65 has a'manually operablelever- 67, which serves torolever 64 and related plunger 60"toward the the present "inventionabove referred 'toi the rock shaft 'is fextencled irearwardly tbeyo'ndthe standard-66 where it is Iprovided with a lever 68 adapted tooverlie? airparm 69 of a pendant link to which is pivotallyfconnected toan arm" 71 on the jknife-bar locking vscrew "33, and which issupportedatflits lower end byail extension 70a "of the carriage';,13; Hence, whenthe operator ejects thefrec'ord byjrocking the shatt'65,"thelever68'm'oves with the ,rockeshagtt until 'it teams with the arm 69 onthelink v70 and moves the latter downwardly', rotating the locking screw3a to release the knife-bai-'- ensemble so that the latter may bereturned to inoperativegpo sitionlby the spring 30. I-tiwill thus'beseenthat the operator, without any "mental effort, "releases? the knife-barlock each time thatjthe record-ejector is operated to remove a'recordfrom the mandrel! means, the. front end of the "rock. shaft 65 nearthesliderail 37 is provided with an arm 71 havingacam IQ-whichcontacts'with the extension 73 ofthefeed pawl 49 and moves the latterout of engagement with the'ratch'et site the cam 72 on the arni'l'l isanother cam i '74 which engages the extension 75 ,of the back-check orstop pawl 52 and moves the latterput ofengagement with theratchetSTherefore, theoperation'. If egecting the record also causes the cam arm72a to be lated shoe n3 8to initial "or starting position.

, Thecarn arm 7241 which causes the auto matic advancing means to berestored, and

To restore the 'automatic 'knife-advancing V p link/Z0for:releasing'the'knitebar ensemble, Before continuing the descriptionof the are returned to normal positions by means of the spring62'mou'ntedflonthe, ej ector' plun gerfl and are held finthis normalposition by theplunger head 63 contactingwith the standard- 1;,thdrock-"sh'aft being con- :nected to the plunger so. as to move there-7 within bothdirectionm The cam 72 on'the arm 26; which engages theextension 7 3 on the feed-,pa-wl/i-9 is arol itnge ClitOr be normallyengaged by the extension and this limit the count-er, clockwiseshaving,' 't he feed pawl' 49 will not move'so farto the'left as seenin- Fig. 2*that it cannot re-engage' the ratchet" 48 whenthe cars--riage again reach-estheendoit" 1ts"shav1ng movement when t' ls desiredto advance the V carriage andhence the knife for taking a finishing cut,

t n will'bented from the above, that the interconnection between theknife-bar re leasing v means and the knife advancing means'wlth therecord GjQCtOI' is only effect- '6Cl at the time thatthe carriage ismthe extreme end of its shaving movement, in V which position, it isallowed to remain until the record has been" removed and a new recordsubstituted therefor. 1 Hence, inad-, verten t oraccidental operation ofthe record ejector while the carriage is in any position other than theposition in which it is to be set'does' not' release the knife-bar lockand restore'the'knif-e-bar advancing means, and

hence such' accidental "movement doesnot makefit necessaryfor the"operator to reset :the machine again to properly shave the record; v7

The same re'sult'is accomplished in a different manner inthepembodim'ent of this invention' shown in Fig.4. Inj'thismodification, "th-e parts'with-the exception of the levers-68 are thesame as those shown in Figs. 1,2 and 3. lh'e lever 68, however, isomitted and a modified lever 68a is used. Thismodified lever' 68a hastwo projections 7.7 and 78 "adapted respectively to overlie and underliethe arm 69 on the link 70. Hence,'eithe' r the projection 77 may engagethe arm 69 to operate the pendant link 70 in case the record-ej ectorlever 67 is actuated, or the arm 69 ofthe pendant link 70-. may engagethe projection 78 to operate the lever 68min case the release lever34eis actuated.

.Thus, the 'recordejector may; be operated and theknife-advancing*meansrestored by manual operation of the lever 34 whichre- .leases the knife-bar lockfor the knife-advanc ing means may berestored and" the v knife-bar lockingmeans released by manual"operationof the record-ejectorf Hence, the

y et-bein g operable'onlyyvhen'thejearriage'isin predeterm nedpostion;'"- [P140 combinationof a fframe; a" mandrel forQsup-l porting arecord to' -be resurfaced; carriage I mountedon saidfra'me'; aknifeniounted on said carriage manually operable means for "locking saidknifejon the carriage; means for advancing the knifeltoward'afrecord;'

' f-ineans for ejecting record fromsaid m'anj .;drel; and means forsimultaneously restoring "the carriage advancing means, ejecting the 7in 1 and releasing the 'knife-locking record-resurfacing nlachine; thecombination of'a mandrel for supporting a record to beires'urfaced;aifr'ame a carriage mounted on said frame; a front railionfltheportingthe 'carri age; acarriagepositioning' determining cam; and a verticallyadj ustable Wear shoe mounted'on the'carri'ageto serve "asan'interponentbetvveenthe camand front rail. 5 V

"combination ofa mandrel for supporting a record. to be'resurfaced;carriage;- a-lrnlfe 'settable in said carr age? I and automatic me'anscomprising a pawl ontheframe and a 4a.; 'cooperatmg'ratchet;onthecarriage for adfvancingtheset knife toward-the record for successivefinishing outs; said pawl and ratch- [combination of a mandrel forsupportinga ria e "l L'fIn' a record resurfacing .ma'chineJthe .o'peratesaid record-ejector; I

' termined position.-

e In; a record-resurfacingmachine, the ",combinationof armandrel forsupporting a recordjto be resurfaced; a frame; .acarriage' mounted a onsaid frame and movable longitu dinally thereof; a knife settable in said"carriage; and means for advancing the-carriage and theknife set thereinstep-by-stepapredetermined extent'toWard the record incidental to themovement of-the carriage to starting position. 4 j i v 18. In arecord-resurfacing machine, the combination of a mandrel for supportinga recordto be resurfaced; a frame; a carriage mounted on sald-frame andmovable long tudinaHyfthereOf; a knife settable in said carriage; andmeansoomprising a cam, and a pavvl and'ratchet mechanism forautomaticallymoving the cam incidental to movement of thef'carriage' toposition for resurfacing 'the record to advance'the carriage and set 1knife toward'the record for successive finishingcuts.

l9. In combination frame;--a record-i supporting mandrel;- a. carriagemovable longitudinallyof the mandrel; an ejector for releasing a'recordfrom the mandrel; and

releasing a record from the mandrel; and

meansonthe carriageadaptedto operate said record-'ejectorwhenthecarriageis'in a pre-' determined longitudinal position-11L; c

ZL'IncombInat Oma frame; a record-sup- "portm'g mandrel; a-cc'arrlagemovable longi- 1531 mfl m ing imhin'q fh Itu'dinally'of th'e mandrel;anejector for releasinga record from' the mandrel; means recordvto beresurfaced; a frame; acarrlage' Q i l 111 11 r ge P Operate 7 movablelongitudinally of; said frame a fset table 'knife mounted onfsaldcarriage means 5' for locking said'knife' inset position;meansfor-advancing the knife toward thef-record fonsuccessive finishing'fcuts; manually'op'ers able means for ejectingtherecord from themandrel';and means operated as an'incident "ijtof-ejecting"the recordfor coordinately rejstoring the knife-advanc-ing means and releasingtheknife-locking means; saidfrneans v l lav"of y ij said record-ejector;and means onthe frame I -V "also adapted to operate the record-ejector;

Q'22. 'In]arecorcl=resurfacing machine; the -'c'ombi at ion' f arecord-supporting mandrel a tool carriage movable with relation to themandrel; means on the too carriage for fnieans mounted on the carriageadapted to' amen; only whenithe carriage is in ,prede- 7 "lockingi the'tool in set-position; a recordejectoryand meansomthe carriage forreleasing the tool lock' and: coordinately operatingzthe record-ejcetor.

Signed at Bridgepornhin the county of Fairfield and St ete ofConnecticut, this 21st 192 w 1 VICTQR L, FRYKMAN.

. mounted" onsaid fr'ameand movable'longi- :my tudina'llythe'reoffa:settabl wif o T 'on' said *carriagefandijmeans automatically;advancing the carriage'and knife toward -recordfor successivejfinishingcutsincidental 9 m ent' of. thefcfarriage:top'osition for resurfacingthe record; said}'Inefans beinglop-

